Please place new variables in the correct alphabetical location on Event edit screen

When a new variable is created via the ✚ button at the top of the Variables tab in the Event editor, it appears in a seemingly random location in the variable list, instead of sorted where it belongs. Thankfully, you conveniently highlighted it, or I would have had a heck of a time finding it.

Pictured below is a newly-created variable, "msgs_reply-note_toggle", which is sorted among variables whose names begin with "S" instead of "M", which made it a little bit harder to find:

Also, it would be beneficial to scroll to bring the new variable into view, so that the user doesn't have to scroll to find it